class Book
{
    private:
    string title;
    unsigned float cost;
    
    Book(string tilte,unsigned float cost)
    {
        this.title = title;
        this.cost = cost;
    }
    
    void setTitle(string title)
    {
        this.title = title;
    }
    
    string getTitle()
    {
        return title;
    }
    
    void setCost(unsigned float cost)
    {
        this.cost = cost;
    }
    
    unsigned float getCost()
    {
        return cost;
    }
}